Share Based Compensation (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Equity Incentive Plan 2013 [Member]
Share Based Compensation Activity [Line Items]
Stock Options Outstanding, Balance	2,075,707	0
Stock Options Outstanding, Granted	237,500	2,117,226
Stock Options Outstanding, Exercised	(115,950)	(693)
Stock Options Outstanding, Cancelled / forfeited	(190,277)	(40,826)
Stock Options Outstanding, Balance	2,006,980	2,075,707
Weighted Average Exercise Price, Balance	$ 4.34	$ 0
Weighted Average Exercise Price, Granted	$ 7.93	$ 4.36
Weighted Average Exercise Price, Exercised	$ 4.90	$ 5.38
Weighted Average Exercise Price, Cancelled / forfeited	$ 4.42	$ 4.96
Weighted Average Exercise Price, Balance	$ 4.73	$ 4.34
Employee Stock Option [Member] | Harvard Bioscience Plan [Member]
Share Based Compensation Activity [Line Items]
Stock Options Outstanding, Balance	2,500,339	622,340
Stock Options Outstanding, Granted	0	217,902
Stock Options Outstanding, Exercised	(66,056)	(487,031)
Stock Options Outstanding, Cancelled / forfeited	(311,635)	(29,972)
Stock Options Outstanding, Adjustment		2,177,100	[1]
Stock Options Outstanding, Balance	2,122,648	2,500,339
Weighted Average Exercise Price, Balance	$ 3.20	$ 4.07
Weighted Average Exercise Price, Granted	$ 0	$ 5.08
Weighted Average Exercise Price, Exercised	$ 3.34	$ 3.33
Weighted Average Exercise Price, Cancelled / forfeited	$ 5.58	$ 4.34
Weighted Average Exercise Price, Balance	$ 2.84	$ 3.20
Restricted Stock Units (RSUs) [Member] | Harvard Bioscience Plan [Member]
Share Based Compensation Activity [Line Items]
Restricted Stock Units Outstanding, Balance	326,185	184,264
Restricted Stock Units Outstanding, Granted	0	63,929
Restricted Stock Units Outstanding, Exercised	0	0
Restricted Stock Units Outstanding, Vested (RSUs)	(154,628)	(55,247)
Restricted Stock Units Outstanding, Cancelled / forfeited	0	(10,892)
Restricted Stock Units Outstanding, Adjustment		144,131	[1]
Restricted Stock Units Outstanding, Balance	171,557	326,185
GrantDate Fair Value, Balance	$ 5.46	$ 3.90
GrantDate Fair Value, Granted	$ 0	$ 5.08
GrantDate Fair Value, Vested (RSUs)	$ 0	$ 0
GrantDate Fair Value, Cancelled / forfeited	$ 0	$ 3.83
GrantDate Fair Value, Balance	$ 5.67	$ 5.46
Restricted Stock Units (RSUs) [Member] | Equity Incentive Plan 2013 [Member]
Share Based Compensation Activity [Line Items]
Restricted Stock Units Outstanding, Balance	19,492	0
Restricted Stock Units Outstanding, Granted	0	23,715
Restricted Stock Units Outstanding, Exercised	(9,796)	0
Restricted Stock Units Outstanding, Vested (RSUs)	0	(2,021)
Restricted Stock Units Outstanding, Cancelled / forfeited	(1,716)	(2,202)
Restricted Stock Units Outstanding, Balance	7,980	19,492
GrantDate Fair Value, Balance	$ 6.00	$ 0
GrantDate Fair Value, Granted	$ 0	$ 6.00
GrantDate Fair Value, Vested (RSUs)	$ 0	$ 0
GrantDate Fair Value, Cancelled / forfeited	$ 0	$ 0
GrantDate Fair Value, Balance	$ 6.00	$ 6.00

[1] Prior to the Separation, this rollforward included only those Harvard Bioscience options and restricted stock units which were issued while giving service to the regenerative technology operations of Harvard Bioscience. If employees were splitting time between regenerative technology and other parts of Harvard Bioscience, only an allocated portion of that year’s activity would be reflected. As of the time of the Separation, the rollfoward was “Adjusted” to exclude all Harvard Bioscience employees not employed by HART at the time of the Separation, and to include 100% of the Harvard Bioscience awards held by HART employees (regardless of level of service in prior years).